JP4328880B2 - Garbage disposal method and equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention treats raw garbage generated in general households as well as food factory, hotel, restaurant, etc., and can finally be discharged as drainage into sewers and rivers, or can be used as middle water The present invention relates to a garbage disposal method and the same equipment (system). In addition, raw garbage refers to the residue of foods produced mainly in the kitchen and kitchen, such as vegetable waste, fruit residue, fish heads and bones.
[0002]
[Prior art]
The methods generally used for the treatment of raw garbage are classified into four categories: (1) incineration, (2) composting, (3) carbonized farmland reduction, and (4) annihilation by microorganisms.
[0003]
[Problems to be solved by the invention]
However, the above garbage disposal methods (1) to (4) have the following various problems.
[0004]
(1) Incineration disposal:
Secondary pollution such as dioxins may occur due to incineration at a high temperature of 200 ° C or higher, and in order to avoid this, enormous energy is required to incinerate at high humidity and low temperature, and the processing cost is very high. Become. In addition, a vast site must be secured as a disposal site for landfilling incinerated ash, and a bad odor may be generated during incineration, which may adversely affect the surrounding environment.
[0005]
(2) Composting:
Since there is enough land in local cities, composting is possible, but in large cities and their surroundings, it is difficult to secure land for composting and it is necessary to obtain the consent of the surrounding residents Also, there are problems in the distribution process for the transportation and commercialization of garbage. In addition to these, there is also a problem that malodor is generated in the process of treatment with microorganisms.
[0006]
(3) Carbonized farmland return:
In recent years, methods for carbonizing raw garbage have been developed. However, since raw garbage is not limited to inorganic substances, but also contains organic substances, there is a possibility that toxic gases may be generated or bad odors may be generated during the carbonization process. is there. In addition, when carbonized and returned to farmland, there are problems in terms of distribution, as well as how much consumers can accept daily garbage generated.
[0007]
(4) Microbial extinction treatment This treatment method needs to be introduced after removing inorganic substances as a pretreatment, and a large amount of microorganisms are required at a rate of 9 times (weight) with respect to the input amount of garbage. The device itself occupies a wide installation place. Moreover, depending on the type of garbage, the decomposition of garbage may not proceed even after one week to one month.
[0008]
Moreover, as the salinity of raw garbage increases, the microbial group (including sawdust) must be replaced regularly (usually 3-4 times a year), and the microbial group is treated as industrial waste. Since it will be disposed, there is a problem in disposal. Furthermore, there is a problem that spoilage and bad smell occur when raw garbage is thrown in at a predetermined rate or more.
[0009]
This invention has been made in view of the above points, and by treating raw garbage in a manner similar to water treatment in the same way as miscellaneous wastewater, it prevents secondary pollution such as dioxins and the like around the treatment facility. It is an object of the present invention to provide a raw garbage processing method and the same processing equipment that do not cause odors and the like, do not deteriorate the environment, and have a relatively low equipment cost. In addition, water mixed with raw garbage can be used as a sewer after treatment, and sludge generated in the treatment process can also be used as a soil conditioner to eliminate or minimize waste. It is said.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a garbage disposal method according to the present invention stores and mixes garbage containing sludge containing humus soil and adds water several times the weight of the stored garbage to the garbage. After smashing and liquefying raw garbage wastewater for a certain period while introducing air,
The raw garbage sewage is supplied at a predetermined flow rate to a biological treatment tank in which the sludge containing humus soil is mixed and stirred and maintained at a predetermined concentration, and the raw garbage sewage is introduced into the biological treatment tank by introducing air. However, it is characterized in that after being decomposed by microorganisms in the sludge, treated water obtained by solid-liquid separation is discharged into a sewer or a river.
[0011]
According to the garbage processing method according to the present invention having the above-described configuration, the soil fungi (consumable) contained in the sludge or the humus soil are mixed by mixing the sludge containing the humus soil when the garbage is stored. Deodorizing action is exerted by sexual anaerobic bacteria and aerobic bacteria or facultative anaerobic bacteria and aerobic bacteria), so that almost no bad odor is generated when storing garbage. When the stored garbage reaches a certain amount (full), several times more water is added to the garbage and pulverized, and sludge is further mixed with the crushed garbage wastewater in a liquefied state. When air is introduced and ventilated, garbage is decomposed to some extent by microorganisms in the sludge, and at the same time, generation of malodor is suppressed by the mixed sludge as described above. In addition, water several times the amount of raw garbage is added, and the raw garbage is finely pulverized and liquefied, so it can be easily and smoothly supplied to the biological treatment tank by a pump etc. in a state close to wastewater (garbage wastewater). (Water supply) In addition to accurately measuring the flow rate of raw garbage sewage with a flow meter etc., it can be easily supplied to the biological treatment tank at a predetermined flow rate, so the sludge concentration is optimal for biological treatment of raw garbage. Can be maintained. In the biological treatment tank, air is introduced and ventilated to promote the activity (decomposition action) of microorganisms in the sludge, so that the garbage is efficiently decomposed in a short period of time.
[0012]
And it is decomposed mainly into water and carbon dioxide in the biological treatment tank, and the treated water obtained by solid-liquid separation can be reused as sewerage by discharging it into sewers and rivers or by disinfecting it further. Become. Further, sludge as solid matter obtained by solid-liquid separation is a small amount even if it is generated when most of raw garbage is decomposed into carbon dioxide and moisture, and these become excess sludge. A part of the sludge in the biological treatment tank is first mixed with the stored garbage and used for deodorization and decomposition treatment. At the same time, humus soil is introduced and activated. Is done.
[0013]
In order to achieve the above object, the garbage processing facility according to the present invention ( Claim 3 ) is provided with raw garbage that is charged and stored with sludge containing humus soil and water several times the weight of garbage. A garbage receiving hopper, a conveyor device for conveying garbage in the hopper, a garbage crusher connected to the tip of the conveyor device for pulverization and liquefaction, and crushed and liquefied garbage waste water A storage tank to be stored, a measuring instrument for feeding the garbage wastewater in the storage tank to the biological treatment tank while measuring a predetermined amount, and the living organism in which the sludge containing humus soil is mixed and stirred in the garbage wastewater. A treatment tank, a sludge culture tank that is provided with a humus soil supply machine and activated while storing (feeding back) a part of the sludge in the biological treatment tank, and odor from the hopper or from the atmosphere Air is sucked into the storage tank, the raw It comprises an aeration blower for supplying air to a material treatment tank and the sludge culture tank, and a solid-liquid separation mechanism provided in the biological treatment tank.
[0014]
The garbage processing facility of the present invention having the above-described configuration can implement the above-described processing method reliably, and has a relatively small number of constituent members and a simple structure. A part of the sludge in the biological treatment tank is sent to a sludge culture tank, where the sludge is matured and activated by the propagation of soil bacteria in the humus soil introduced by the humus soil supply machine. The activated sludge is sent to the storage tank, the biological treatment tank and the garbage receiving hopper are also sent, and finally circulated.
[0015]
In the garbage disposal method according to claim 1, as described in claim 2, it is desirable to set a sludge concentration in the biological treatment tank to 5000 to 15000 mg / l. Moreover, in the garbage processing facility according to claim 3, the sludge concentration in the biological treatment tank is preferably set to 5000 to 15000 mg / l as described in claim 4.
[0016]
According to the garbage disposal method according to claim 2 or the garbage disposal facility according to claim 4, by setting the sludge concentration to 5000-15000 mg / l, the sludge necessary and sufficient for biological treatment of garbage Concentration is ensured and the generation of excess sludge is minimized.
[0017]
By the way, humus soil in this specification means soil quality that contains a large amount of black-brown organic humus made by decomposing animals and plants contained in soil and coal. Specifically, humus (soil) is a plant or animal. Is decomposed by microorganisms, and together with inorganic gases such as carbon dioxide, water, and ammonia, low molecular organic substances such as sugars, quinones, amino acids, and proteins are formed, and these low molecular organic substances repeat dehydration to re-synthesize polymers. Although it is a product, it is a collective term for this re-synthesized product and decomposing and undecomposed organic matter.
[0018]
The type of humus soil is not particularly limited, but the fallen leaves of deciduous trees and degradation products derived from animals are sufficiently degraded under a warm climate and then re-synthesized, and then saturated with calcium. It is desirable to use a humus soil made from the neutral humus produced as a raw material, reduced in molecular weight by biotechnology, and stabilized as a micelle colloid by increasing the amount. Neutral humus is a humus that has been buried underground in the ground for 8000 years, has a large amount of vegetative humus that is decomposed by microorganisms, and contains several tens of percent of fulvic acid and iron complex produced by biotechnology. Therefore, it is preferable.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a garbage disposal facility according to the present invention will be described with reference to the drawings, and a garbage disposal method by the treatment facility will also be described.
[0020]
FIG. 1 is a flowchart of the entire facility showing an embodiment of the garbage processing facility of the present invention.
As shown in FIG. 1, a garbage disposal facility 1 for biologically treating garbage B through activated sludge H containing humus soil J includes a garbage receiving hopper 2, a garbage wastewater storage tank (storage tank) 3 and the like. A biological treatment tank 4, a sludge culture tank 5, a humus soil supply machine 6, and a disinfection tank 7.
[0021]
The garbage receiving hopper 2 is closed at its upper end by an upper wall surface 2a, and has a loading port 2b for garbage B in a part of the upper wall surface 2a, and a lid 21 is attached to the loading port 2b so that it can be opened and closed. . An odor suction port 26 is formed in the center of the upper wall surface 2a, and one end of an odor suction tube 27 is connected to the suction port 26. Moreover, the lower end 2c of the hopper 2 is opened, and the rear side of the screw conveyor 23 communicates with the inside of the conveyor 23 in the lower end opening 2c. The screw conveyor 23 extends to above the garbage wastewater storage tank 3, and a garbage crusher 31 is connected to the front end of the screw conveyor 23. A drive motor 25 for the screw 24 is mounted at the rear end of the screw conveyor 23. The crusher 31 is provided with a drive motor 32 at the upper end, and an introduction cylinder 33 extends downward from the lower end opening. Further, in order to treat the garbage B in the same manner as the drainage, one end of the water supply pipe 11 for supplying fresh water (including water from the water supply) into the garbage receiving hopper 2 penetrates the upper wall surface 2a. Has been inserted. The other end of the water supply pipe 11 is connected to a water supply source (not shown).
[0022]
The storage tank 3 is a sealed tank whose upper end opening is closed by an upper wall surface 3a, and an introduction cylinder 33 of the pulverizer 31 passes through the upper wall surface 3a and faces the inside. An odor suction port 34 is formed in the center of the upper wall surface 3a, and one end of an odor suction tube 35 is connected to the suction port 34. A discharge pipe 36 for garbage sewage C is connected to the vicinity of the lower end of the side wall 3b of the storage tank 3, and a supply pump 40 is interposed in the discharge pipe 36 to measure the supply flow rate of the garbage sewage C ( The downstream end of the discharge pipe 36 is connected to the inlet of the flow meter 8. Further, one end of a drain pipe 37 for returning the garbage waste water C that has overflowed a preset flow rate (per unit time) to the storage tank 3 is connected to the measuring instrument 8, and the other end of the drain pipe 37 is connected to the storage tank 3. Is connected to the upper end of the side wall 3b. Further, a supply pipe 38 of the garbage sewage C is exposed to the inside of the biological treatment tank 4 from the outlet of the measuring instrument 8. The other end of the odor suction pipe 35 is connected to the middle of the odor suction pipe 27, and the other end of the odor suction pipe 27 is connected to the suction port of the blower 30.
[0023]
The biological treatment tank 4 has an open upper end, and in this example, the sludge H containing the humus soil J is in a range of 5000 to 15000 mg / l of sludge concentration with respect to the amount of stored garbage wastewater C. Is pre-loaded. Also, a submersible pump 41 is provided near the bottom of the biological treatment tank 4, and a sludge supply pipe is provided at the discharge port of the submersible pump 41 so that the sludge H deposited on the bottom can be supplied into the garbage receiving hopper 2. One end of 42 is connected, and the other end of the sludge supply pipe 42 is connected to the upper wall surface 2a of the garbage receiving hopper 2. One end of the sludge H discharge pipe 43 is connected to the upper end of the side wall 4 a of the biological treatment tank 4, and the other end is connected to the upper end of the side wall 5 b of the sludge culture tank 5. Furthermore, a submerged membrane device 9 is provided in the biological treatment tank 4 for separating the sludge H as a solid content from the garbage wastewater C and taking out the purified treated water x. The other end of the air introduction pipe 91 whose one end is connected to the discharge port of the blower 30 is connected to the bottom of the submerged membrane device 9, and the submerged membrane device 9 is discharged from the air introduction tube 91 (odor). In addition, the solid-liquid separation is promoted and air bubbles are discharged into the garbage wastewater C, and the microorganisms in the sludge H are ventilated to come into contact with the air. In addition, since the biological treatment tank 4 has opened the upper end, the upper surface of the garbage wastewater C is in contact with air.
[0024]
One end of the suction water supply pipe 71 for the treated water x is in contact with the upper end of the submerged membrane device 9, and a supply pump 72 is interposed in the middle of the suction water supply pipe 71. The other end of the suction water supply pipe 71 is the disinfection tank 7. In treated water x. In the disinfection tank 7, a storage container 73 for a solid disinfectant (sodium hypochlorite in this example) s is installed immediately below the outlet of the suction supply pipe 71, and a number of small containers provided in the storage container 73 are installed. The solid disinfectant s is dissolved in the treated water x from the holes. The dissolution concentration of the disinfectant s is set to about 10 PPM in this example. Thus, the sterilized treated water y is discharged into a sewer or a river in this example, but can be reused as a middle water.
[0025]
On the other hand, in addition to supplying the sludge H in the biological treatment tank 4 to the garbage receiving hopper 2 through the sludge supply pipe 42, the sludge H is also supplied from the discharge pipe 43 to the sludge culture tank 5. The upper end opening of the sludge culture tank 5 is blocked by the upper wall surface 5a, and the humus soil J is periodically supplied from the humus soil supply machine 6 to the sludge H in the sludge culture tank 5. The humus soil supply machine 6 includes a hopper-like container 61 in which the humus soil J is stored from the top inlet 62, a screw conveyor 64 disposed in communication with the lower end opening 63 of the container 61, and a front end of the screw conveyor 64. An introduction cylinder 67 is provided extending downward and penetrating through the upper wall surface 5a and facing the sludge H in the sludge culture tank 5. Moreover, the humus supply machine 6 is equipped with the screw 65 rotated with the motor 66 with which the rear end was equipped. In addition, the sludge density | concentration in the sludge culture tank 5 is set to 5000-15000 mg / l in this example. Further, the amount of sludge H fed from the biological treatment tank 4 to the sludge culture tank 5 is 50 to 100% by weight of the weight of the raw garbage B input to the raw garbage receiving hopper 2 for one day (24 hours). . Furthermore, the supply of the humus soil J supplied from the humus soil supply machine 6 for the activation of the sludge H in the sludge culture tank 5 is carried out at a rate of once every 20 to 30 days. Is 0.5 to 2.0% by weight of the input amount of garbage B. For this reason, the humus supply machine 6 is equipped with a timer (not shown), and the screw 65 is rotated by the motor 66 periodically for a certain period of time.
[0026]
A sludge supply pipe 51 is connected to the upper end portion of the side wall 3 b of the storage tank 3 in order to supply the activated sludge H to the storage tank 3 from an intermediate position in the vertical direction of the side wall 5 b of the sludge culture tank 5. One end of the branch pipe 44 branched in the middle of the sludge discharge pipe 43 is also connected to the upper end portion of the side wall of the storage tank 3, and the excess sludge H in the biological treatment tank 4 also passes through the branch pipe 44 to the storage tank 3. Supplied.
[0027]
In addition, the air introduction pipe 91 extending from the discharge port of the blower 30 is branched in the middle, and the branch pipe 92 is inserted to the vicinity of the bottom of the treated water x in the sterilization tank 7 and is connected to the lower end of the branch pipe 92. From the above, bubbled air is introduced into the treated water x. The air introduction pipe 91 is branched immediately downstream of the branch pipe 92, and the branch pipe 94 is inserted through the upper wall surface 3 a of the storage tank 3 to the vicinity of the bottom of the garbage wastewater C. Bubble air is introduced into the garbage waste water C from the air blowing nozzle 95 connected to the. Further, the branch pipe 94 is branched in the middle, and the second branch pipe 96 penetrates the upper wall surface 5a of the sludge culture tank 5, is inserted to the vicinity of the bottom in the sludge H, and is connected to the lower end of the second branch pipe 96. Air bubbles are introduced into the sludge H from the air blowing nozzle 97.
[0028]
Next, the operation state (garbage disposal method) of the embodiment of the garbage disposal facility having the above configuration will be described.
[0029]
1) For example, a large amount of garbage B generated from apartment houses such as condominiums and apartments, food factories, hotels, restaurants, etc., is transported directly or by garbage collection trucks and put into the garbage receiving hopper 2 .
[0030]
2) Fresh water is supplied from the water supply pipe 11 to the garbage receiving hopper 2 by 2 to 3 times (by weight) the amount of garbage B input. Also, the sludge H in the biological treatment tank 4 is supplied to the garbage receiving hopper 2 through the submersible pump 41 through the sludge supply pipe 42. The amount of sludge H supplied is around 30% of the weight of garbage B and water. When sludge H is mixed with garbage C, soil bacteria in the sludge produce metabolites. The product is a secretion of aerobic bacteria, facultative anaerobic bacteria, or a group of bacteria consisting of aerobic bacteria and facultative anaerobic bacteria, has an odor removal component, and the odor gas generated from garbage C is sludge H. , Reacts with odor components in the gas and decomposes to prevent the odor components from spreading and deodorize. Further, when air is introduced and aerated, aerobic bacteria contained in the sludge H, facultative anaerobic bacteria, or bacteria composed of aerobic bacteria and facultative anaerobic bacteria, A part is decomposed.
[0031]
3) The garbage B in the garbage receiving hopper 2 is mixed with water and sludge H and conveyed to the crusher 31 at the tip while being mixed and stirred by the screw conveyor 23 at the lower end. Then, the garbage B is finely pulverized by the pulverizer 31 and is mixed with the sludge H to be liquefied with fresh water, and is stored in the storage tank 3 as the garbage sewage C. In the storage tank 3, 30% by weight of sludge H is supplied from the biological treatment tank 4 and the sludge culture tank 6 with respect to the raw garbage sludge C, and is contained in the sludge H when air is introduced and aerated. The aerobic bacteria, facultative anaerobic bacteria, or a group of bacteria composed of aerobic bacteria and facultative anaerobic bacteria prevents the decomposition of garbage sewage C and the generation of malodors. In particular, since the sludge H supplied from the sludge culture tank 6 is activated by the input of the humus soil J, the deodorizing (deodorizing) effect and the decomposition action are excellent.
[0032]
4) The crushed material of the garbage B is decomposed to some extent and becomes close to sewage (drainage), and this trash sewage C is supplied to the biological treatment tank 4 by the supply pump while being metered at a predetermined flow rate by the measuring instrument. In the biological treatment tank 4, when the air is introduced and ventilated, the pulverized material of the garbage B is decomposed by microorganisms (soil fungi and the like) in the sludge H. And it decomposes | disassembles almost completely in the biological treatment tank 4, and turns into a carbon dioxide and water (treated water). The treated water x and the sludge H in the biological treatment tank 4 are separated from the sludge H by the submerged membrane device 9 that is vibrated by the air fed from the blower 30 and sucked by the supply pump 72 to be disinfected. 7 is sent. In addition, if the treated water x separated by the submerged membrane device 9 is equal to or less than a discharge standard value to the sewer (for example, BOD: 200 mg / l, SS: 200 mg / l and n-hexane: 10 mg / l or less), The treated water x can be discharged directly to the sewer or river without sending water to the disinfection tank 7.
[0033]
5) In the disinfecting tank 7, the treated water x is further disinfected by bubbling air from the air blowing nozzle 93 in a solution in which sodium hypochlorite s is dissolved at a concentration of about 10 PPM. The treated water y is drained from the drain pipe 75 and discharged.
[0034]
In addition, the sludge H sent from the biological treatment tank 4 to the sludge culture tank 5 is mixed with the humus soil J supplied from the humus soil supply machine 6, and the sludge H is contained in the humus soil J in the sludge culture tank 5. It is matured and humus activated by the action of the soil fungi. Further, in this example, the humus soil J used to activate the sludge H supplied from the humus soil feeder 6 contains humic acid with an organic content of 20% by weight or more, PH3 or less in an aqueous solution, and redox. Although the potential was +500 mmV or more, it goes without saying that the present invention is not limited to this.
[0035]
Another embodiment Although one embodiment related to the garbage processing facility of the present invention has been described above, it can be carried out as follows. That is,
(1) A grinder (disposer) is installed in the kitchen of each apartment in a condominium, such as a condominium, and the wastewater B is stored using the drain pipe while adding the water from the water supply while crushing the garbage B with the crusher. Directly sent to the tank 3 as raw garbage sewage C obtained by pulverizing the raw garbage B and adding water to liquefy it. Then, the sludge H, particularly activated sludge H, is supplied to the garbage wastewater storage tank 3 and mixed with the garbage wastewater C to decompose and deodorize the garbage B with microorganisms. In this case, the garbage receiving hopper 2 and the crew conveyor 23 with the garbage crusher 31 are not required.
[0036]
(2) In the biological treatment tank 4, the generation of surplus sludge is suppressed as much as possible. However, since surplus sludge is usually generated, this sludge H is dehydrated and stored except for the circulation, or the sludge culture tank 5 After humus soil J is activated by mixing and stirring, it can be dehydrated and dried to be used as a soil conditioner.
[0037]
【The invention's effect】
As is apparent from the above description, the garbage processing method and processing equipment according to the present invention have the following effects.
[0038]
(1) The invention according to claim 1 can treat raw garbage as water treatment in the same way as miscellaneous wastewater, so the treatment facility is relatively simple, and biodegradation of raw garbage by microorganisms in sludge is possible. Secondary pollution is prevented, and there is no odor or the like around the processing equipment, and the environment is not deteriorated. Furthermore, water mixed with raw garbage can be used as a sewer after treatment, and sludge generated in the treatment process can also be used as a soil conditioner, so there is no need for land for disposal or burial. Implementation is possible.
[0039]
In addition, since sludge is mainly used as a deodorization and biodegradation medium, maintenance costs are low, and since the sludge is circulated while being activated in the sludge culture tank, the deodorization and biodegradation effects do not decrease semipermanently. Can be used.
[0040]
(2) The invention described in claim 2 can surely implement the processing method of claim 1 and has substantially the same effect as the above-mentioned effect relating to claim 1, and has a relatively small number of constituent members and a simple structure. Equipment costs are also relatively low.
[0041]
(3) In the invention described in claim 3, by setting the sludge concentration to 5000 to 15000 mg / l, the sludge concentration necessary and sufficient for biological treatment of raw garbage is secured and the generation of excess sludge is minimized. Can be suppressed.
[Brief description of the drawings]
FIG. 1 is a flow chart of an entire facility showing an embodiment of a garbage disposal facility according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Garbage processing equipment 2 Garbage receiving hopper 3 Garbage sewage storage tank 4 Biological treatment tank 5 Sludge culture tank 6 Humus soil supply machine 7 Disinfection tank 8 Meter (flow meter)
9 Submerged membrane device 23/64 Screw conveyor 27/35 Odor supply pipe 30 Blower 31 Garbage crusher 36/43 Drain pipe 37 Drain pipe 40/72 Supply pump 42 Sludge supply pipe 43 Sludge supply pipe 44/92/94 / 96 Branch pipe 51 Sludge supply pipe 61 Hopper container 71 Suction supply pipe 91 Air introduction pipe 93/95/97 Air outlet nozzle H Sludge J Humus soil B Garbage C Garbage wastewater x Treated water y Treated water s Disinfectant (next Sodium chlorite)

Claims (4)

   Mixing and storing sludge containing humus soil in raw garbage, adding water several times the weight of the stored raw garbage to the raw garbage, crushing it, and introducing liquefied raw garbage wastewater for a certain period of time while introducing air After storage, the raw sludge containing the humus soil is mixed and stirred to supply a predetermined amount of the raw garbage wastewater to the biological treatment tank, and the raw wastewater is introduced into the biological treatment tank. Then, after decomposing with the microorganisms in the sludge while ventilating, the treated water obtained by solid-liquid separation is discharged into a sewer or a river, etc. The garbage disposal method according to claim 1, wherein the sludge concentration in the biological treatment tank is set to 5000 to 15000 mg / l .  A garbage receiving hopper that throws in raw garbage and adds water several times the weight of raw garbage together with sludge containing humus soil, a conveyor device that conveys the raw garbage in the hopper, and a tip of the conveyor device A garbage pulverizer that is connected to the tank and pulverized and liquefied, a storage tank that stores pulverized and liquefied garbage sewage, and a biological treatment while measuring the amount of garbage sewage in the storage tank by a predetermined amount. A measuring instrument to be supplied to the tank; A sludge culture tank that is activated while being fed and stored, and sucks odors from the hopper or air from the atmosphere, and supplies air to the storage tank, the biological treatment tank, and the sludge culture tank Aeration blower If, garbage treatment facility, characterized by comprising a solid-liquid separation mechanism deployed in the biological treatment tank. The garbage disposal facility according to claim 3, wherein a sludge concentration in the biological treatment tank is set to 5000 to 15000 mg / l .

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